Polypropylene vs Polyethylene: Which to Choose?

PP is stiffer and handles heat; PE is tougher in the cold. A side-by-side property table, the shrinkage numbers that decide your mold, and simple rules for picking between them.

PP is stiffer and handles heat; PE is tougher in the cold. A side-by-side property table, the shrinkage numbers that decide your mold, and simple rules for picking between them.